Brun Motorsport had entered two Repsol Porsche 962C for the 1991 Le Mans 24 Hours but used the big stage to present their new WSC car Brun C91 with Judd V10 3.5 N/A engine to the public. Teething problems prevented the car from starting at the Nürburgring so Oscar Larrauri raced the car at Magny-Cours for the first time. Only two races later the dream was over and Brun Motorsport had come to a bitter end.